Cast
Donald Wolfit
Dr. Lomond
Greta Gynt
Cora Ann Milton
William Hartnell
Sam Hackett
Norman Wooland
Inspector Bliss
Dora Bryan
Mrs. Hackett
Charles Victor
Inspector Wembury
John Slater
Bell
Mai Zetterling
Lisa
Denholm Elliott
John Lemley
Walter Fitzgerald
Commissioner
Campbell Singer
Station Sergeant Carter
John Stuart
Gardener
Edward Chapman
Stranger
Herbert Lom
Maurice Meister